I'm sure they are all fine for somebody, but they don't cut it for me.

None of them look like options for me right now, either. One of the virtues of Patreon was how low-key and low-maintenance it could be: pledge money and a certain amount of art turns up in your mailbox every month, make a certain amount of art every month and take home money. None of these platforms appears to have that flexibility and open-endedness, except for maybe Ko-Fi, which has explicitly no subscription service and puts your financial information much closer to the public than I am comfortable with. I am really hoping gwynnega is right and some other company will fill the exact void left by Patreon when it ceased to behave reasonably, because I have less and less faith each day that it will ever behave reasonably again.